8ede0bdb63
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
21 lines
495 B
C
21 lines
495 B
C
#ifndef __UM_DELAY_H
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#define __UM_DELAY_H
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#define MILLION 1000000
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/* Undefined on purpose */
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extern void __bad_udelay(void);
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extern void __udelay(unsigned long usecs);
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extern void __delay(unsigned long loops);
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#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
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__bad_udelay() : __udelay(n))
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/* It appears that ndelay is not used at all for UML, and has never been
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* implemented. */
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extern void __unimplemented_ndelay(void);
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#define ndelay(n) __unimplemented_ndelay()
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#endif
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